Forming-machine.



A. G. LIVERMORE.

FORMING MACHINE.

APPLICATION FILED OCT. 6, 190a.

Patented Feb. 21, 11911.

4 SHEETS-SHEET 1.

A. G. LIVERMORE. FORMING MACHINE. APPLICATION FILED OUT. 6, 1906.

984,681. Patented Feb. 21, 1911.

4 SHEETS-SHEET 2.

A. c. LIVTERMOREI.

FORMING MACHINE.

APPLICATION FILED OCT. 6; 1906.

Patented Feb.21, 1911.

4 SHBET8-SHEBT 3.

A. G. LIVERMORE. FORMING MACHINE APPLICATION FILED OUT. 6, 1906.

Patented Feb. 21, 1911.

4 SHEETS-SHEET 4.

Qwi/bmeooeo ARTHUR G. LIVERMORE, OF HOLYOKE, MASSACHUSETTS, ASSIGNOR TOTHE AMERICAN THREAD COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEWJERSEY.

FORMING-MACHIN E.

To all whom it may concern:

Be it known that I, ARTHUR G. LIVER- MORE, a citizen of the UnitedStates, residing at Holyoke, Hampden county, Massachusetts, haveinvented certain new and useful Improvements in Forming-lVIachines, ofwhich the following is a full, clear, and eX- act description.

My invention relates to improvements in machines for forming circular orperipheral surfaces, and also surfaces which are cylindrical or conical,and has for its object to produce a new and improved machine forperforming such work rapidly and accurately, and also a machine whichwill automatically grind a series of articles so that all that shall benecessary will be to feed such articles into the hopper of the machine.

The following is a description of a machine embodying my invention,reference be mg had to the accompanying drawings, in which Figure 1 is aplan View of the machine, Fig. 2 is a side elevation with parts of thetable cut away, Fig. 3 is a sectional view on the linea"w, Fig. 2, Fig.4 is a sectional view on the line y y, Fig. 2, Fig. 5 is a detailshowing a springconnection.

Referring more particularly to the drawings, A A are two rotatableshafts carrying pulleys B B and journaled in the bearings C C. Theseshafts are movable longitudinally and are provided with clampingsurfaces D D. E are adjustable collars mounted on the shafts A A towhich are connected levers F F pivoted respectively at f. The collar Eis connected to its lever F through a connection made yielding by aspring 6, (Fig. 5) so as to compensate for all unequal lengths of thebobbins grasped between the faces D D. The lower ends of these arms areprovided with anti-friction rollers G G which travel in the grooves H Hof the cams I I. The cams I I are mounted on the cam shaft J, which iscaused to slowly revolve by the worm-wheel K. The cam shaft J alsocarries a cam L against which bears an anti-friction roller M carried bythe lever N. This lever is pivoted at N and carries an adjustablecounterweight N At the upper end N of the lever N is pivoted a link N towhich is con nected a lever 0 having a projection O to which a spring 0is connected. The lever is pivoted to the stationary arm 0 On theSpecification of Letters Patent. Patented Feb, 21, 1911, Applicationfiled October 6, 1906.

Serial No. 337,843.

upper end of the arm 0 is mounted a carrier or trough P, which whendepressed is adapted to receive from the hopper Q. the lowermost bobbinR and carry it up into a position where it will be grasped by the endsof the shafts A A. A restraining strip S carried by the trough P holdsthe next succeeding bobbin within the hopper until the trough is againdepressed. 011 the arm 0, to the rear of the trough P, is a guide T, theupper end of which (when the trough is depressed) comes directly beneaththe space between the clamping surfaces D D of the shafts A A, so thatwhen a bobbin is released by them it falls upon the guide surface T andis carried to the rear of the machine. The trough P has adjustableguides 22 p which center the bobbin in the trough and prevent it fromjarring endwise as the trough moves. Upon the cam shaft J is alsomounted a cam U, having a cam groove U within which is the antifrictionroller V carried by the bellcrank lever V. This lever V is pivoted at Vand has its upper end pivoted at V to a sliding carriage TV, which isnormally pressed toward the front of the machine by a compression springTV. The carriage TV carries trunnions in which is mounted a revolvingshaft WV one end of which carries the shaper or grinder 7 This grinderis provided with a suitable surface, and in machines for shapingcompressed wood pulp objects, such as machines embodying my inventionare now more particularly used for, this surface is formed ofcarborundum glued or cemented to the surface in any suitable manner, andof such coarseness as may be found most adapted for the particularfinish desired. The shaft W carries a pulley Vi over which runs a belt,driving the grinder V. at a rapid rate. The shafts A A are also drivenrapidly by belts upon the pulleys B B.

In the operation of the machine bobbins are fed into the hopper Q, beingheld there by the strip Q, placed over their centers so that they can bedelivered only from the lower end of the hopper and into the trough Pwhen the same is depressed. The cams I I are so located relatively tothe cams L and U that when the trough P is being lifted so as to bringthe bobbin contained therein in line with the axis of the shafts A A,the opposing clamping surfaces D D will be in withdrawn position. The

trough P is held in raised position until the shafts A A are movedtogether under the influence of the cams I I sufiiciently to engage thebobbin lying between them. Thereupon the trough P, under the influenceof the cam L, is withdrawn, and the sliding table IV with the grindingcylinder W is, under the influence of the cam U, moved forward so as tocause the cylinder to come in contact with the bobbin to be shaped. Therapidly revolving surfaces of the grinder coming in contactwith therapidly revolving bobbin held between the ends of the revolving shafts AA produce F a finished cylindrical surface upon the bobbin of suchfineness as may be desired.

By making the grinder of the desired form, various shaped surfaces canbe finished. The surfaces finished by the grinder shown in the drawing,are in part cylindrical and in part conical. The surfaces which may befinished, however, are not lim ited to these forms, but may be ofvarious forms.

In order that the bobbins may be properly doffed, I provide doifers D Dwhich are mounted upon the journals C C and doif the bobbin when thespindles are withdrawn.

My invention permits of embodiment in various forms, but the foregoingis the best mode in which I have contemplated applying the principleinvolved therein.

The machine may be run at a high rate of speed, and, being automatic,requires little attention from the attendant, and one attendant cansupervise a number of such machines.

lVhat I claim is:

1. In a forming machine, the combination of a revolving clamp adapted tohold the object to be shaped, a revolving shaper mounted on an axisparallel to the axis of said clamp, means for causing said clamp andsaid shaper to revolve about their axes, and a continuously rotating camfor moving one of said elements so as to cause said shaper and saidobject to move into and out said carrier to receive said objects anddeliver them to said clamp, means for causing said clamp to grasp saidobjects, means for bringing said shaper and said objects when so graspedinto and out of engagement, and means for causing said clamp tothereupon release said objects.

4%. The combination of a hopper, a carrier adapted to receive articlesfrom said hopper, a revolving clamp to which said carrier delivers saidobjects, means for causing said clamp to grasp the object so delivered,a revolving shaper having its axis parallel to the axis of the clamp,and means for causing one of said revolving members to move at rightangles to its axis of revolution 7 so as to bring the shaper intolateral engage ment and disengagement with said object, and means forcausing said clamp to release said object after said disengagement.

In combination, a hopper Q, a carrier I, a cam L adapted to actuate saidcarrier, revolving clamping members D D to which the carrier deliversobjects received from said hopper, cams I I for causing said clampingmember to grasp and release said objects, a revolving shaper having itsaxis parallel to the axis of said clamping members D D, and a cainUadapted to move the axes-of said shaper and clamping members toward andaway from one another.

ARTHUR C. LIVERMORE. lVitnesses G. H. MILLER, A. N. LA PORTE.

